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The following code snippet shows the specification of our PL/SQL package: scott@ORA10G> create or replace package callable_stmt_demo 2 as 3 function get_emp_details_func( p_empno in number ) 4 return sys_refcursor; 5 procedure get_emp_details_proc( p_empno in number, 6 p_emp_details_cursor out sys_refcursor ); 7 procedure get_emps_with_high_sal( p_deptno in number, 8 p_sal_limit in number default 2000 , 9 p_emp_details_cursor out sys_refcursor ); 10 procedure give_raise( p_deptno in number ); 11 end; 12 / Package created. As you can see, the PL/SQL package is called callable_stmt_demo. It defines three procedures, get_emp_details_proc, get_emps_with_high_sal, and give_raise, and a function, get_emp_details_func. The data type sys_refcursor used in these procedures refers to a ref cursor. Ref cursors are cursor variables typically used to return a query s result to a client program (e.g., one using JDBC). In a JDBC program, the ref cursor is seen as a ResultSet object (which you should be familiar with by now). The data type sys_refcursor is Oracle s built-in type (starting from 9i) that represents a ref cursor. Thus, when we invoke the function get_emp_details_func later using JDBC, we will get a ResultSet object that corresponds to the ref cursor returned by the function. Let s now look at the package body that shows us the implementation of the package procedures and functions declared in the specification. scott@ORA10G> create or replace package body callable_stmt_demo 2 as 3 function get_emp_details_func( p_empno in number ) 4 return sys_refcursor 5 is 6 l_emp_details_cursor sys_refcursor; 7 begin 8 open l_emp_details_cursor for 9 select empno, ename, job 10 from emp 11 where empno = p_empno; 12 13 return l_emp_details_cursor; 14 end; 15 procedure get_emp_details_proc( p_empno in number, 16 p_emp_details_cursor out sys_refcursor ) 17 is 18 begin 19 p_emp_details_cursor := get_emp_details_func( vb.net code 39 reader VB . NET Image: Example to Read Code 39 Barcode with VB . NET Codes in ...
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Free to download .NET, C#, VB . NET barcode reader app for Code 39 ; C# Code 39 recognition SDK; VB . NET Code 39 recognition SDK. Of course, the business object needs to be able to associate lists of roles with its properties. The AuthorizationRules object exposes a set of methods for this purpose one for each access type. For instance, the AllowRead() method adds roles to the list of roles allowed to read a specific property: public void AllowRead(string propertyName, params string[] roles) { RolesForProperty currentRoles = GetRolesForProperty(propertyName); foreach (string item in roles) { currentRoles.ReadAllowed.Add(item); } } This method accepts the name of the property and an array of role names. It uses the GetRolesForProperty() method to retrieve the appropriate RolesForProperty object from the dictionary, and then appends the roles to the ReadAllowed list. The DenyRead(), AllowWrite(), and DenyWrite() methods work in a similar fashion. word ean 13 barcode, birt pdf 417, upc-a word font, birt code 39, birt barcode tool, how to create barcodes in word 2007 vb.net code 39 reader read code 39 barcode with vb . net - Stack Overflow
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NET Code 39 Barcode Reader , Reading Code - 39 barcode images in .NET, C#, VB . NET , ASP.NET applications. If you are deleting many rows that match specific criteria, use the delete_from statement instead of delete, as it performs better. If you are updating many rows that match specific criteria, use the update_from statement instead of the update statement, as it performs better. Think well about your indexes: lack of good indexes will lead to full table scans. Sort data using indexed fields and avoid conflicts between where and order by clauses. Write where clauses that select only the data you need. Minimize the time records are locked by not hanging on to data longer than necessary i.e., don t select some data for update, do a bunch of other stuff, and then use it sometime later. Use recordset functions where possible, such as array insert, insert recordset, and update recordset. Remember that the methods in BusinessBase were virtual, so a business developer could implement their own authorization algorithm by using AuthorizationRules if the algorithm in BusinessBase is inadequate. p_empno => p_empno ); end; procedure get_emps_with_high_sal( p_deptno in number, p_sal_limit in number default 2000 , p_emp_details_cursor out sys_refcursor ) is begin open p_emp_details_cursor for select empno, ename, job, sal from emp where deptno = p_deptno and sal > p_sal_limit; end; procedure give_raise( p_deptno in number ) is begin update emp set sal = sal * 1.5 where deptno = p_deptno; end; end; / vb.net code 39 reader Visual Studio . NET Barcode Scanner Library API for . NET Barcode ...
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